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TPIJeep 10-15-2001, 08:32 PM I have a small block Chevy 415 with about 73 cc heads and my EFI and pump gas are not getting along. Does anybody make a aftermarket head with chamber sizes larger than 76cc? I need to lessen my compression ratio from 10.56, I want cast or alum does not matter, must fix problem.. Thanks 71RCKCRZR RYAN 10-15-2001, 08:36 PM THATS A LOT OF COMPRESSION AND CUBES FOR TPI........WHAT KIND OF STUFF DO YOU HAVE TO MAKE IT ALL WORK...JUST CURIOUS.. I DONT KNOW ABOUT A BIGGER CC HEAD BT TRY A THICKER HEAD GASKET .... NE-RokToy 10-15-2001, 08:42 PM aluminum will help, then take the heads to a good race shop and have them clean up the combustion chambers this will increase there volume. Also you can get thicker head gaskets which will help also | |